MUNDANE MYSTERIES: Cement Vs. Concrete

MUNDANE MYSTERIES: Cement Vs. Concrete

We walk on sidewalks all the time, so much so that we usually don’t ever think about the stuff we’re stepping on: the rigid, smooth, gray hard stuff under our feet. But, have you ever stopped to wonder what the proper name for that stuff is? Is it concrete, or is it cement? And, what’s…